Editing Multiple exposure (section)

===Analogue===
[[File:5th plate of Racheal. One peace (i.e. piece) of background - DPLA - bd61425783fd25a7ede31e2f4fa0d1fa.jpg|thumb|right|Triple exposure photograph from 1915]]
In [[photography]] and [[cinematography]], multiple exposure is a technique in which the camera shutter is opened more than once to expose the film multiple times, usually to different images. The resulting image contains the subsequent image/s superimposed over the original. The technique is sometimes used as an artistic visual effect and can be used to create ghostly images or to add people and objects to a scene that were not originally there. It is frequently used in photographic [[hoax]]es.

It is considered easiest to have a manual winding camera for double exposures. On automatic winding cameras, as soon as a picture is taken the film is typically wound to the next frame. Some more advanced automatic winding cameras have the option for multiple exposures but it must be set before making each exposure. Manual winding cameras with a multiple exposure feature can be set to double-expose after making the first exposure.

Since shooting multiple exposures will expose the same frame multiple times, negative [[exposure compensation]] must first be set to avoid overexposure. For example, to expose the frame twice with correct exposure, a −1 EV compensation have to be done, and −2 EV for exposing four times. This may not be necessary when photographing a lit subject in two (or more) different positions against a perfectly dark background, as the background area will be essentially unexposed.

Medium to low light is ideal for double exposures. A tripod may not be necessary if combining different scenes in one shot. In some conditions, for example, recording the whole progress of a lunar eclipse in multiple exposures, a stable tripod is essential.

More than two exposures can be combined, with care not to overexpose the film.